Guard and guard key for carpet looms



June 6, 1933. E. SPAGNOLA ET AL GUARD AND GUARD KEY FOR CARPET LOOMS Filed June 21, 1932 2 Sheets-Sheet l Inventors .ZrzJz'nza jnyizaZa 7572019222" yq zzaia June 6, 1933. E, SPAGNOLA ET AL 1,912,501

GUARD AND GUARD KEY FOR CARPET LOOMS Filed June 21, 1932 2 Sheets-Sheet 2 Invenlors 2220217220 wa /202a 757200222 fjvcynaia flzmaolih Patented June 6, 1933 UNITED STATES P E T OFFICE ENDIMO SPAGN'OLA AND VINCENT SPAGNOLA, OF AMSTERDAM, NEW YORK, ASSIGN- ORS 0F ONE-THIRD TO JOSEPH N. BARNETT, OF AMSTERDAM, NEW YORK GUARD AND GUARD KEY FOR CARPET LOOMS Application filed June 21,

This invention relates to improvements in carpet looms, the general object of the invention being to provide guards on the loom chain for holding the frame brackets in position if the spring hooks thereof should break, with means for displacing the guards as they pass over the sprockets.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claims.

In describing the invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a view in side elevation of portions of a carpet loom chain and its sprocket showing the invention in use.

Fig. 2 is a section on line 22 of Fig. 1.

Fig. 3 is a sectional view through a double link of the chain with the guard thereon, and showing a portion of the tube frame and its bracket and bracket spring hook.

Fig. 4 is a View showing how the guard is pushed outwardly by a key on the bracket.

Fig. 5 is a view showing the normal position of a guard.

Fig. 6 is a perspective view of the guard.

As will be understood, when a spring hook 1 of a bracket 2 of a tube frame breaks, the bracket will be released from the chain A so that the parts will fall and might cause considerable damage. It is therefore the object of my invention to provide guards B on the chain for holding the bracket 2 in place with the spring hook 1 of the bracket braced, and also to provide means for moving the guards to one side of the chain as the chain passes over the sprockets C. The guard is of the shape shown in Fig. 6, which shows the guard of angle shape with the part 1 attached to the outer face of one member of the double link a of the chain, by the long bolts 5 which pass loosely through the holes 6 in said part of the guard. A spring 7 on each bolt normally holds the guard with the part 4 contacting the outer face of one member 1932. Serial No. 618,550.

of the double link and with the part 8 extending across the double link so that it will engage the oifset part of the bracket 2, and hold the bracket in position if the spring hook 1 should break.

Keys 9 are formed on the sprocket C at one side thereof and project across the recesses formed in the sprocket and located between the chain engaging portions 10 of the sprocket. The outer ends of these projections 9 are beveled as shown in Fig. 2, so that they will engage the guards where the parts 4 thereof are formed with the curved portion 4: so as to force the guards outwardly, as shown in Fig. 4, so that said guards will not interfere with the passage of the chain over the sprocket.

Thus the guards will prevent the parts from dropping from the chain if the spring hook 1 should break and the guards 1 will remain in operative position until they reach the sprockets when the keys will force them outwardly. As the operator stands near the sprockets he will see the broken spring hook and can stop the machine before the bracket is released by the guard being forced outwardly by a key of the sprocket.

It is thought from the foregoing description that the advantages and novel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction and in the combination and arrangement of the several parts provided that such changes fall within the scope of the appended claims.

Having thus described our invention what we claim as new is 1. In a carpet loom including the brackets of the tube frames, the sprockets, the chains passing over the sprockets and the spring hooks for holding the brackets to the chains, a guard for holding each bracket to a link of a chain, if a spring hook breaks and means on the sprockets for moving the guards outwardly as the links carrying the guards move over the sprockets.

2. In combination with a carpet loom including the chains, and the sprockets over which the chain passes, guards for holding the tube frame brackets in position, a bolt for supporting each guard from a double link of the chain, means on the bolt for forcing the guard against the link, and keys on the sprockets for forcing the guards outwardly as the chain passes over the sprockets.

In testimony whereof We afiix our signatures.

ENDIMO SPAGNOLA. VINCENT SPAGNOLA. 

